Merge pull request #1634 from ensch/master

Fix for rustc 1.17.0-nightly (6eb9960d3 2017-03-19)

appveyor.yml

@@ -12,6 +12,7 @@ environment:
           MSYS2_BITS: 64
 
 install:
+    - set PATH=C:\Program Files\Git\mingw64\bin;%PATH%
     - curl -sSf -o rustup-init.exe https://win.rustup.rs/
     - rustup-init.exe -y --default-host %TARGET% --default-toolchain nightly
     - set PATH=%PATH%;C:\Users\appveyor\.cargo\bin;C:\Users\appveyor\.rustup\toolchains\nightly-%TARGET%\bin

clippy_lints/src/attrs.rs

@@ -86,8 +86,8 @@ impl LintPass for AttrPass {
 
 impl<'a, 'tcx> LateLintPass<'a, 'tcx> for AttrPass {
     fn check_attribute(&mut self, cx: &LateContext<'a, 'tcx>, attr: &'tcx Attribute) {
-        if let MetaItemKind::List(ref items) = attr.value.node {
-            if items.is_empty() || attr.name() != "deprecated" {
+        if let Some(ref items) = attr.meta_item_list() {
+            if items.is_empty() || attr.name().map_or(true, |n| n != "deprecated") {
                 return;
             }
             for item in items {
@@ -110,8 +110,9 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for AttrPass {
             ItemExternCrate(_) |
             ItemUse(_, _) => {
                 for attr in &item.attrs {
-                    if let MetaItemKind::List(ref lint_list) = attr.value.node {
-                        match &*attr.name().as_str() {
+                    if let Some(ref lint_list) = attr.meta_item_list() {
+                        if let Some(name) = attr.name() {
+                            match &*name.as_str() {
                                 "allow" | "warn" | "deny" | "forbid" => {
                                     // whitelist `unused_imports` and `deprecated`
                                     for lint in lint_list {
@@ -138,6 +139,7 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for AttrPass {
                             }
                         }
                     }
+                }
             },
             _ => {},
         }
@@ -218,8 +220,8 @@ fn check_attrs(cx: &LateContext, span: Span, name: &Name, attrs: &[Attribute]) {
     }
 
     for attr in attrs {
-        if let MetaItemKind::List(ref values) = attr.value.node {
-            if values.len() != 1 || attr.name() != "inline" {
+        if let Some(ref values) = attr.meta_item_list() {
+            if values.len() != 1 || attr.name().map_or(true, |n| n != "inline") {
                 continue;
             }
             if is_word(&values[0], "always") {

clippy_lints/src/doc.rs

@@ -89,14 +89,12 @@ pub fn check_attrs<'a>(cx: &EarlyContext, valid_idents: &[String], attrs: &'a [a
 
     for attr in attrs {
         if attr.is_sugared_doc {
-            if let ast::MetaItemKind::NameValue(ref doc) = attr.value.node {
-                if let ast::LitKind::Str(ref doc, _) = doc.node {
+            if let Some(ref doc) = attr.value_str() {
                     let doc = (*doc.as_str()).to_owned();
                     docs.extend_from_slice(&strip_doc_comment_decoration((doc, attr.span)));
             }
         }
     }
-    }
 
     if !docs.is_empty() {
         let _ = check_doc(cx, valid_idents, &docs);

clippy_lints/src/lib.rs

@@ -9,7 +9,6 @@
 #![feature(slice_patterns)]
 #![feature(stmt_expr_attributes)]
 #![feature(conservative_impl_trait)]
-#![feature(collections_bound)]
 
 #![allow(indexing_slicing, shadow_reuse, unknown_lints, missing_docs_in_private_items)]
 #![allow(needless_lifetimes)]

clippy_lints/src/missing_doc.rs

@@ -77,7 +77,7 @@ impl MissingDoc {
             return;
         }
 
-        let has_doc = attrs.iter().any(|a| a.is_value_str() && a.name() == "doc");
+        let has_doc = attrs.iter().any(|a| a.is_value_str() && a.name().map_or(false, |n| n == "doc"));
         if !has_doc {
             cx.span_lint(MISSING_DOCS_IN_PRIVATE_ITEMS,
                          sp,

clippy_lints/src/returns.rs

@@ -150,9 +150,5 @@ impl EarlyLintPass for ReturnPass {
 }
 
 fn attr_is_cfg(attr: &ast::Attribute) -> bool {
-    if let ast::MetaItemKind::List(_) = attr.value.node {
-        attr.name() == "cfg"
-    } else {
-        false
-    }
+    attr.meta_item_list().is_some() && attr.name().map_or(false, |n| n == "cfg")
 }

clippy_lints/src/utils/mod.rs

@@ -678,17 +678,13 @@ fn parse_attrs<F: FnMut(u64)>(sess: &Session, attrs: &[ast::Attribute], name: &'
         if attr.is_sugared_doc {
             continue;
         }
-        if let ast::MetaItemKind::NameValue(ref value) = attr.value.node {
-            if attr.name() == name {
-                if let LitKind::Str(ref s, _) = value.node {
-                    if let Ok(value) = FromStr::from_str(&*s.as_str()) {
+        if let Some(ref value) = attr.value_str() {
+            if attr.name().map_or(false, |n| n == name) {
+                if let Ok(value) = FromStr::from_str(&*value.as_str()) {
                     attr::mark_used(attr);
                     f(value)
                 } else {
-                        sess.span_err(value.span, "not a number");
-                    }
-                } else {
-                    unreachable!()
+                    sess.span_err(attr.span, "not a number");
                 }
             }
         }

tests/matches.rs

@@ -1,5 +1,4 @@
 #![feature(rustc_private)]
-#![feature(collections_bound)]
 
 extern crate clippy_lints;
 extern crate syntax;